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TITLE:
eScan Products Agent Service Missing User Authentication

SECUNIA ADVISORY ID:
SA23809

VERIFY ADVISORY:
http://secunia.com/advisories/23809/

CRITICAL:
Less critical

IMPACT:
Security Bypass

WHERE:
>From local network

SOFTWARE:
eScan Corporate Edition 8.x
http://secunia.com/product/13721/
eScan Anti-Virus for Windows 8.x
http://secunia.com/product/14097/
eScan Enterprise Edition 8.x
http://secunia.com/product/14094/
eScan Internet Security Suite 8.x
http://secunia.com/product/14093/
eScan Professional Edition 8.x
http://secunia.com/product/14098/
eScan Virus Control Edition 8.x
http://secunia.com/product/14096/
eScan Web and Mail Filter 8.x
http://secunia.com/product/14095/

DESCRIPTION:
Secunia Research has discovered a security issue in various eScan
products, which can be exploited by malicious, local users to gain
escalated privileges or by malicious people to manipulate certain
settings or gain knowledge of sensitive information.

The MicroWorld Agent service (MWAGENT.EXE) runs with SYSTEM
privileges and accepts connections from anywhere without implementing
an authentication scheme. This allows anyone to send arbitrary
commands to the service (default port 2222/tcp) allowing the
following:

1) An unprivileged, local user can gain SYSTEM privileges by sending
a SCASYS, SCADRV, or SCAMEM command, which invokes the Anti-Virus
scanner in a window with SYSTEM privileges. Through this, it is
possible to execute any command with the privileges of the scanner
via e.g. the "View Log" functionality.

2) It is possible to disable/enable the eScan Anti-Virus Monitor
process via the DISMON and ENAMON commands.

3) An unprivileged, local user can uninstall the product via the
UNISOFT command and clicking "Yes" on a window that pops up on the
user's desktop.

4) It is possible to disclose the contents of arbitrary files on the
system via the SEND command.

5) It is possible to enable/disable the "Restrictive Scanning"
configuration setting via the SLOMOD ("High Security (Slow Mode)")
and FASMOD ("Medium Security (Fast Mode)") commands.

6) It is possible to enable/disable the eScan "File Rights"
configuration setting via the ENFRIG and DIFRIG commands.

7) It is possible to change the server status via the STASER and
STOSER commands.

8) It is possible to configure the update server via the UPDSET
command.

The security issue is confirmed in version 8.0.671.1. Other versions
may also be affected.

SOLUTION:
The vendor has issued a Beta3 version, which fixes the security
issue.

A stable version should be available shortly.

PROVIDED AND/OR DISCOVERED BY:
Carsten Eiram, Secunia Research.

ORIGINAL ADVISORY:
Secunia Research:
http://secunia.com/secunia_research/2007-45/

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About:
This Advisory was delivered by Secunia as a free service to help
everybody keeping their systems up to date against the latest
vulnerabilities.

Subscribe:
http://secunia.com/secunia_security_advisories/

Definitions: (Criticality, Where etc.)
http://secunia.com/about_secunia_advisories/


Please Note:
Secunia recommends that you verify all advisories you receive by
clicking the link.
Secunia NEVER sends attached files with advisories.
Secunia does not advise people to install third party patches, only
use those supplied by the vendor.

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